FRACTOGRAPHIC ANALYSIS OF SELECTED BORON STEELS SUBJECTED TO IMPACT TESTING

被引：5

作者：

Dudzinski, W. ^{[1
]}

Konat, L. ^{[1
]}

Bialobrzeska, B. ^{[1
]}

机构：

[1] Wroclaw Univ Technol, Dept Mat Sci Welding & Strength Mat, PL-50370 Wroclaw, Poland

来源：

ARCHIVES OF METALLURGY AND MATERIALS | 2015年 / 60卷 / 03期

关键词：

low alloy steels with boron; microstructural analysis; impact strength; fractography;

D O I：

10.1515/amm-2015-0387

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

In this paper dynamic properties of low-alloy boron steels Hardox 500, B27 and HTK 900H in delivered state (after hardening and tempering) are considered. Charpy V-notch (CVN) test results in connection with fractography in the ductile-to-brittle transition temperature region were analyzed. Obtained from CVN test the impact transition curve, not always predicts properly a behavior of materials in conditions of dynamic loading. So an analyze of character of fracture helps to evaluate the real behavior of materials. Tested samples were cut out longitudinally in relation to cold work direction. The results of CVN test for selected steels, in temperatures: -40 degrees C, 20 degrees C, 0 degrees C and +20 degrees C are presented. Regarding ductile-to-brittle transition temperature, there is a significant difference taking into account values of Charpy V energy absorbed and a character of fracture.

引用

页码：2373 / 2378

页数：6

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